The pair met way back in the '90s on the set of Melrose Place, where they played eventual lovers Amanda Woodward and Dr. Peter Burns. Both were married at the time.

In 2007, after Locklear's marriage to Bon Jovi guitarist Richie Sambora imploded over rumors of his alcoholism and Wagner divorced his former General Hospital co-star Kristina Wagner, the longtime friends started dating.

At the time of their engagement, Locklear told People magazine that her daughter Ava was over the moon the two were finally making it official.

"Ava was so excited when we told her," she told the mag. "She hugged Jack, said congratulations, and she immediately wanted to see the ring."

"I want her to do what makes her happy," Ava said of her mom. "That's the main point."

Despite the breakup, both Heather and Ava looked perfectly content on the red carpet at the Breaking Dawn premiere last night.

Wagner would have been Locklear's third husband. In addition to Richie Sambora, she was also married to Motley Crue rocker Tommy Lee from 1986 to 1993.